Comparison

SUND vs Nerveli App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SUND

This app provides a tranquil experience through gentle vibrations and calming audio. It's designed to help users relax and find a sense of peace. Enjoy a soothing escape from daily stress.

Highlights
  • Emits vibration
  • Plays soothing sounds
  • Promotes relaxation
  • Offers a calming experience
  • Designed for stress relief
Features
Read full description

A relaxing and calming app that emits vibration with soothing sounds. Terms of service: http://sund-admin.vibe-8.com/terms-of-service Privacy policy: http://sund-admin.vibe-8.com/privacy-policy

About

Nerveli App

This science-based wellness app helps individuals manage chronic pain by tracking symptoms and lifestyle factors. It uses AI to identify patterns between pain, sleep, stress, and daily habits, offering educational content and coping tools.

Highlights
  • Body Map pain tracking
  • AI-assisted pattern insights
  • Science-informed approach
  • Educational library on pain management
  • CBT and mindfulness tools
  • Personalized guidance
Features
Read full description

Nerveli is a science-based wellness app for people living with chronic pain. It combines Body Map tracking with AI-assisted insights to help users notice patterns between pain, sleep, stress, activity, and daily habits. Pain can feel overwhelming — Nerveli helps make those patterns easier to understand over time. Nerveli is a wellness and educational tool designed to help users track symptoms and lifestyle factors. It does not provide medical diagnosis, treatment recommendations, or clinical evaluation. Unlike simple symptom trackers, Nerveli helps you organize and reflect on changes in pain, sleep quality, stress levels, movement, and routines. This can help you better recognize trends, triggers, and habits that may be associated with flare-ups or persistent discomfort. What Makes Nerveli Different: Body Map Tracking — Tap where it hurts to build a visual history of your pain and notice location-based patterns over time. AI-Assisted Insights — Highlights connections between pain, stress, sleep, activity, and daily habits so you can better understand recurring patterns. Science-Informed Approach — Content and tools are informed by current pain research and designed to support self-awareness and daily management. Educational Library — Articles and guides written in an accessible language to help users learn more about pain, lifestyle factors, and coping strategies. CBT & Mindfulness Tools — Practical techniques that support relaxation, reflection, and healthier responses during difficult days. Personalized Experience — Guidance and content are adapted based on the information you choose to track in the app. Private & Secure — Your data stays yours. Never sold, never shared with advertisers. Millions of people live with chronic pain every day. Nerveli helps users build awareness, consistency, and confidence through structured tracking, education, and supportive tools — without false promises or quick fixes. Download Nerveli to start tracking patterns, building self-awareness, and taking small, meaningful steps forward.

Screenshots

SUND4 screens
Nerveli App4 screens

Verdict

The call

The clearest difference is in-app purchases: Nerveli App at none against SUND's 2. Nerveli App also leads on update cadence (weekly vs every 3 weeks) and ratings volume (7 vs 2). SUND's advantage is iOS requirement (13.0 vs 15.5). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SUND sells 2 in-app purchases, starting at $1.99 per month. Nerveli App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SUND against 5.0 for Nerveli App. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

SUND ships an update every 3 weeks, Nerveli App weekly. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.

Scorecard5 real differences · 5 level
SUND versus Nerveli App: the parameters behind the verdict, then further details
ParameterSUNDNerveli App
PriceFreeFree
Rating5.0 (2 ratings)5.0 (7 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings27 — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.5
Further details — not scored
Size20 MB187 MB
Age rating4+17+
DeveloperColin MacintoshUnicode LLC

Customer experience

SUND

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Nerveli App

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

SUND

Subscriptions2
  • One month subscription$1.991 Month
  • One year subscription$19.991 Year
None

Nerveli App

No in-app purchases

Questions

Is SUND free?
SUND is free to download, with in-app purchases available.
Is Nerveli App free?
Nerveli App is free to download, with no in-app purchases.
Which has better reviews, SUND or Nerveli App?
SUND and Nerveli App are both rated 5.0 out of 5 on the App Store, from 2 and 7 ratings respectively.
Do SUND or Nerveli App have ads?
Neither SUND nor Nerveli App shows ads.
Which is updated more often, SUND or Nerveli App?
SUND ships an update every 3 weeks, and Nerveli App weekly. Most recently, SUND was updated on June 1, 2026 and Nerveli App on September 17, 2026.

Other comparisons